Machine for covering wood with sheet metal



2 1 1,646,533 9 w. B.'HEW|TT -MACHINE FOR COVERING WOOD WITH SHEET METALFiled April 22. 1926 Q5 73 T 2o 261 as o 0o 3 1 a 3 36 3o 3 as "wil 4Sheets-Sheet 1 7 Oct. 125, 1927. 4 1,646,533

w. B. HEWITT MACHINE FOR Filed April 22. 1926 4 Sheets-Sheet 2 25 192Oct 7 w. B. HEWITT MACHINE FOR COVERING WOOD WITH SHEET METAL 4SheetS-Sheet 3 Fil ed April 22. 1925 attozwdg Oct. 25, 1927.

MACHINE FOR COVERING WOOD WITH SHEET METAL EWlTT Filed April 22. 1926 Pi1a 4 Sheets-Sheet 4 l/llaifar B fawitt;

flm m al I Patented ,[Oct. 25, 1927.

" -wzim ssnfiewrem m memoirs,

pa s W stated,

Wood; niat-eria-l, of var section, the saine beingsimplex-neonstruetien,eeo

- nomieal in operation,

p faetie which can he inannfactn afeoniparatiiiely low [price 1 :1should thereof.

for accomplishing this result is to cove far-as possible, with has beendetermined oniically and f ltsif each piece of Wood- MACHINE 303Coven-me ween A licat on filed Aprnea, 1926 object (if this invention,broadly is to provide machines ypositiv ally automatic in re ize hat Uneof themost imp re 'econ before it is bnildingpr; device, such for doors,

a pa uwm i s 'withthebnilding I V a Therefore; to 1 accomplish V theseresu'lts in practical mana an economicalygefiicient, and

st. attached therener with a minimum of {co 7 to, and

perfection, is the predominant object of this invention. 7

F gure oneof my machines.

' front portion thereof. plan Viewof the sa-me;

. of-the bearingsand the pulley eon Figure Windows,

I at, the same time with a;

drawings,

benches, et cetera,

tailed into connection for covering e' in. action, its --nio\j einents,and 1 red and installed at Y In the constructionof; bu-llding,res'peci;ally those intended forfactory use, it is-becomi ng Ieverything -possi;b1e done to decrease the fire hazard ortant ineagns rall i built into: its

instance as maximum of ;;results above enumerated are -ob-"v tained bythe employment of niachines sue-h substantially as is shownin theaceon1panying four sheets of in Which 1 is aperspe'ctiye right-hand view ofigure '2 tive; View of the sameyas tak maino'r ca rn 4" is a crosssection 0 ure "5 shows the r Figure in elevation. gur'e I of the ing enis a perspective of the lower one o V igure erative face; of the Tripperone o isa perspecen from the Figure 3 is a top ,Fignre-t isa'VieW1shaft, together with its nected therewith. v f the cam shaft,

1016 Fig; "4:. Fig- 7 feeding mechanism alone. the feeding rollers ordies 7 is anend elevation of r the finishing dies. Figure 8' is an endelevation-ofthe reeeivview of the operative :face' f the, pairofzfinishing dies, 10 is a perspeetiveWieW of. the opf the; pair ofwhich 1 mmn -Assiendn mo transien- 'FIBZEfiWeF'-Door;eoMtANY,MCGRPORATION OF INDI'A1\TA.."MV-

wmn snnm mmem ;I a

I seriai noa-10339311 finishing dies. Fligilre an eleva '1 tion o f thedelivery ends ef'the painof form il ing dies. Figure-'12 is a perspeetiv'e View:

ofthe operating; faee oi the lower one of t'he pair of forming dies; 7Eignre-l g-is" agperspeetive; View of the operat ,g-fjaee of' upperone;oflthepair of-fornnng-dies.

ure 14: an end--eleyationyof thereee ends ef thepairoffornnn 1 jgute Iis av eros iseet'ion of thees eet nietalgnaterial;

after it has-passed through the-forming dies. 'Eigure 16 .is a ;eross-section offthe ;sheei m a me al i -h%t$;P@$$ Q gh e f ing d v1 i tt eweto i t elri i to becoveredplaced therein, F' ai'e lfl 7 represents the"completed material a ft haspassed'through thefi nishin ;{'dies.

1'8 showsan alternativeferithe'npper roller "shown in Fig. 6. AndEigiire lais a side a elevation, taken on avreducedi,scald-showing 7 I 1two of ny nachines, which pooper'atejwith" eachother to.produeeafinished, produot, and showing a feeding device, located 1 .-be.- j

we nth WQ.m hi

- 7 Similar indices 'denote-likeg-pa-rtsthrough-1SQ tthes ll'alvie Inorder thatf the construction, the open v ation, and the severaladyantages of-the in-l 1 vention -niay lfoe norei f ully itndei steodand h appreciated, will now,- ,ta'ke, 11p a 'detai1 1- e5 1 1 de pt t ert'i swhi h wil zset-ifierth Y the same as fully and as comprehensivelyias iA e WQ m chine hown--in-Eig=-19)w are substantially identical with-eaehother 0 therefore lwill designatethe sever-a1 la arts,-v byeertainindiees, and the saline partsin the other I Will designate byylike indiees, Also astl1e};machinev onj the left in Fig; :19gisused 1first in the operation, therefore I will, when. necessary toa.clearunderstanding;referto; v it as the, tirst' nifachine, While themachine on-the rig'ht-liwill refer -to as the fseeond .ma ohineF. Eachmachine, 1 shown -ing-Fig; 1, ineludesa bench} 1, the; samejin this;instance i W being' supported at'th e desired: elevation jbfy thefQurlegs QP a, .f p 7 Secured on and extending 'across; the forwardiendportion ofthe bench is the b ase 3, from'the ends of which a'r'e the upa-rdlyi extending standards 4; "and 5, Which-carry.

on their upper ends the res-pectiye bearings,

, 'Revolvahly' 7 is tlfie-cafil -shaft 18.

"WWI-lied n the; bearings eiand. 5 a 1' Seeuredon'-th.e,; pm. in)

portion thereof, while the relation to the end mounted around the majoror central portion of the shaft 8,and extending. between the shouldersat and b, is a thimble- 10, and formed integralwith the ends thereof'arethe bearings 11 and 12. Numeral l3 denotesla grease-cup, affording meansfor lubricating the major portion of the shaft 8 and the thimblel'O. s V

Extending downward from the'bearings 11 and l2, and integral therewithand with thei thimble 10, are the arms 14 and 15,

are formed removable and 16 isthe stem 18 which and then downwardly,extend'-' ingspaced apart forks 19 and 20. The I the two, spaced-apartbars 1 and: 27, isthe upper die 28,

between which isl'ocated the upper portion of the plunger 16, the samebeing pivotally connected between said armsby the bolt 17,

which extends through the lower portions of said arms and the upperportion of the plunger, substantiaillyas shown in-Fig. 2.

"Formed integralwith and extending rearward from the lower portion ofmerges into the two rearwardly,

downwardly extending endportions of-said forks arerotatably mounted tothe respective bearings 21 'and22, by meansofthe respective'pivots 23and 24. Said bearings 21 and 22 are rigidlysecuredto the rear endportion ofthe bench 1, as shown in Fig. '1'.-

' Extending down from 'the underside of the plunger 16 and integral vupper head 25, which has integraltherewith 26 and 27, which extendforward and rearward.

Contacting-with the underside of the head 25 and fitting snugly betweenthe bars 26 adapted'to be rigidly secured, as by setsorews 29.". Sai'dset screws 29 are adapted to be run inward to grip the beveled portion Mofthe upper'dies, and by which they forthe purpose hereinafterexplained. Extending upward from the face of the base 3, which forms thelower head, arethe twospaced-apart bars 30 and 31 which are parallelwith thebars-26 and27; I v

Contacting with the surface of the base 3, and fitting snuglybetweenthebars 30 and 31 is the lower die 32, which is likewise adapted'to berigidly secured by set-screws 133, -Whereby it may-be removed orinterpulley 9 in the usual offset, between the offset.

other words,

the plunger therewith is the the same being interchangeable,

and arelocated directly under changed with other dies, as hereinafterexplained.

At the front or left of the left-hand machine a reel 34 is provided, andit is revolvably mounted in ing from the forward end of the machine, as,shown in Figs. 1, 2,3 and 19. Said reel is adapted to carry a roll ofribbon of sheet metal D, which is wound into a compara-,

tively large bale, or roll, which is adapted to be mountedconcentrically with the reel on which itis loc'ated,-but is adapted tobedrawn therefrom as the reel revolves'or, in as the'ribbon is drawn offthe reel revolves under tension.

Extending out from the front end of the a tension device 36,.

left-hand machine is a frame 35 extend consisting of aplurality of smallrollers or round bars, between whichthe ribbon D is threaded, as shownin F ig. 2. Said metal ribbon D is" adapted to be drawn in between thedies 28and 32 in the manner hereinafter described.

The feeding mechanism, shown in Figs. '5

and 6, may be located any where forward of either machine shown herem;

Numerals 37 and 38 upper ends of which are provided with bearings inwhich is mounted the horizontal shaft 39. "'Located between thestandards 37 and. 38, and mounted concentrically on the shaft 39, is theadapted to be belt 41. p

The other end supported by two, spaced-apart, standards pulley 40, whichis rotated by power through the 42 and 43, the upper portions ofwhich'pro- Vide bearings for the shaft '39;

Located directly below the shaft 39, parallel therewith, and carried bythe standards- 42 and 43, is the minor or short shaft 44.

Numerals 45- and .46 denote two gear wheels, which'are equal with eachother in diameter, and they are meshed togetheiythe former being carriedby the shaft 39, and the latter by the shaft 44. I

denote standards, the

portion of the shaft 39 Secured on the shaft 39, and located.

between the standards 42 and onthe shaft 44 is the secondary feed roller48. The peripheries 48 are complements of each other and they areadapted to fit together and clamp upon the metal D after dies MN, in thesay'when it is in 15. 3 It is, however,

it has passed between the first machine, that is to the form shown in FiFig. 18, whereby it will be adapted to contact with'the wood E, thatiswhen the material is as in Fig. 16.

At this pointit might 43, is the main feed roller 47 or 47 and likewisesecured O to' beunderstood that the periphery-or face of the roller '47may be straight and parallel with-theshaft 39, and its face beingcorrugated as shown in be ,well to explain that I have shown twosets ofdies: Those of the rollers 47 and,

shown in Figs. 1, 2,141, 12 and 'I3'being i hereinafter referred to asthe first 'set which are mounted in the second machine;

and-tliose shown in Figs. 7, 8,9""and l -being referred to as thesecond-set.

ln prac'ti'ce the first 'set 0f dies is con- -nectedginto the machine,asin, Figs. 1and2, for performing the first operation, and the secondsetof dies is in-like-manner conifecte'd into the second machine, shown;at

"the esteem; right in *-Fig. 19. This enables one-t o run the material Dthrough the first E is laid"in,"-as shownin Fig. 16. =A fter the- Figs.-l1,-1 2*-'and 13 and this will give the metal -D -the sha-pe--shown inF'ig.--15.

' Between' t-he two machines the wood stock wood stock has been laid-inthen the II1 a.te rial-is run throu'gh the second machine, that isbeaveen'sne jdiesshown in Figs. 7, 8, '9 arid- 10, lw-hich will lock the*wood stock in place and securely locking the metal in connc tiontherewithf'and will finislrthe process "wherebyfihe product fwill appear-'as shot'vn in Figl-l'i.

' In praetice' theshaft 8 is to be revolved at cnip'aratii ely' highrate ofspeed, while the shaft 39 revolved at relatively slow r'ate'ofspeed. However as the three units sit end to end they may all'beconnected to thesa'n'ie line shaft, and therelative speed of the uhits'm'ay be governed by' the sizes of the drive and the driven pulleys.

'It will be realized that the "upper dies willyb'e 'moired directlyupand down, or

vibrated, at a high rate ofspeed amounting to rapid hammering, combined"with "a ni'aximam of force, whereby the inetal' strip D, as it is fedinto the front end of the machine betweentlfe dies, "as they "appear 'inFig. 14, will be hammered gradually but firmly to the required shape or"the faces of the diesflt-thirfiar ends, Fig. 11, thereby .ca-tising itto emerge fromsaid dies in the slrape shown in Fig. 15.

' In order to start the; metal throughj the dies the end of the'meta'l'strip D "is taken from the roll'fiat, and forced manually bet'ween the "dies (as at Fig. 14) untilsuffi-' cient material has passed"therebetween whereby'it can'beentered between the rolls L7 and 48,thereafter the operation of the shaft 39 will cause the rollers 47 and483m pull the material with proper force to draw it through the firstset of dies, and then force it (with the wood stock therein) through thesecond set of dies of the second machine. After pass ng through thefirst set of dies the wood stock is laid therein, as in Fig. 16, afterwhich the material with the wood stock therein is entered between thesecond set of dies, at the end thereof which is shown in Fig. 8, andemerge therefrom at the end thereof shown in Fig. 7.

The second set of dies 'inerely bend the' "edge portions of the metal,which *sta'nd up as' '7 shown in Fig.16, down into contact withYthe vback fo'f the' wood stock to the position shown in"-Fig.-*17'. 3

It is "to be understood that tliev p'roduct shown-in Fig. '17 isfo nlyan example thereof, as a great rai'i'etyof materialmay-loe enlployedwith various shapes ene izes, enl-y requiring that therebe dies{provided to coning *on the shape and the -si Ze of the wood stock to becovered. I

"It isto be'unders'tood that various changes may be --made in the sei eial details-lferei'n" set' forth without departingfrom the sp "it of theinvention, and without sacrificing any of' 'the advantages thereof are-Iiew-aiid useful.

Having now fully-shown and de'seri bed my invention, what 1 cl'a'iin,and dsif e "-to secure by Letters Patent of the United States,is-- f 1.A machine substantially set -fof t1i coinprisiiig a pair of dies whosefa'ces -ar'eof Varying contour from end Ito and threo f and adapted to'approah near together, means for, rigidly se'ci'iring one of said diesin fixed position, means forimparting to'the other one 'of said dies ayibrating movenient at right aiiglesqtothe "fixed-dia aid' dies beingadapted to receive a strip or sheet metal therebet ween, means formoving said strip of sheet metal between the dies whereby it willreceive a predetermined shape depei'idihg on the "contour of "thedi-e's. and a second 'set of dies between which said metal; after havingbeen formed in the ii1'*-'st rounding thee'c centric portion bf thethan; a

between said'fstandards, 'a 'plunge'r piyotally connected tojsaidtliimbiaa headcar'ried by the lower end o'f theplungerfanupper die},

means -for *detachably connecting sai'd "die to the underside ofsaid'head; arms integral with said'head and extending to the rear Itherefrom, means for pivotally connecting the rear ends of sald arms, alower die,

means for detachably connecting the lower 7 die on the base and directlyunder the upper die. said dies being adapted to recelve a strip of sheetmetal therebetween to be formed thereby into the desired shape.

3. A machine for covering wood with sheet metal,vcomp rising a bench, abase secured on the bench, a pair of standards extending upward from the:base, bearings carried by the upper endsof the standards,

' the shaft,spaced arms extending downward from the thimble, a plungerpivoted between said arms, a head carried by the lower end of theplunger, bars integral with the under face of said head, a stemextending back horizontally from said head, arms extending back from thestem and pivoted to the bench at a distance from the base, a die memberadapted to be detachably secured between said arms, a lower pair of barsextending upward from the base, a second die member adapted to bedetachably secured between said lower pair of bars, said dies beingcomplements of each other for forming. I sheet metal passmgtherebetween, a reel for containing the sheet metal stock, and a tensiOndevice forthe sheet metal stock 10 ated between the reel and the dies.

4. A machine including a relatively fixed die-member, a movabledie-member, the faces of said, die members being complements of eachother and'adapted to nest together, means for imparting to the movabledie-member vibrating movements at right-angles to the fixed die member,said die members being adapted to receive a stri of sheet metaltherebetween to be formed of the curvature, in cross section, of thefaces of the die members at their discharge ends; a second machinehaving a fixed die-member, a movable die-member, the faces of the saiddie members. of the second machine being complements of each other andadapted. to nest together and of a contour different from the contour ofthe faces of the die-members of the first machine, means for impartingto the movable die-member of the second machine vibrating movements atright-angles to the fixed die-member of the second machine,' the diemembers of the second machine being adapted to receive therebetween themate-- rial formed by the die-members of the first machine and impartthereto the contour, in cross-section, of the faces of the die-membersof the second machine in addition to that part of the contour impartedby the diesof the first machine, and means located between said machinesfor feeding the material forward. i i

5. Means for covering wood stock with sheet metal, comprising a firstmachine ineluding a base, a pair of standards extendmg upward from thebase, an eccentric shaft carried by said standards, means whereby saidshaft may be revolved by power, a th mble surroundlng the eccentricportion of said shaft between said standards, a plunger pivotallyconnected to said thimble, a head on the lower end of said plunger, anupper die, means for connecting said die tothe under side of said head,arms integral with said head and extending rearwardly therefrom, meansfor connecting the rear ends of said arms, a lower die, means forconnecting the lower die to the base and directly under the upper die,said dies being adapted to receive a strip of sheet metal therebe-vother, a reel for containing the sheet metal stock connected with thereceiving end of the first machine, a tension device connected with thereceiving end of the first machine, and a feeding device located betweenthe two machlnes.

6. The herein described means for forming sheet metal stock and securingit into connection with wood stock, comprising two spared apartmachines, a fixed-die and a movable die carried by each of the machines,means for imparting vibrating Vmovements to the movable dies with thesheet metal stock between the two dies of the first ma chine whichare-adapted to form the sheet metal stock to receive the wood stock, thedies of the second machine being adapted to receive the sheet metalstock with the wood stock laid therein and to secure the sheet metalstock to the wood stock by bending the sheet metal stock into engagementtherewith, means for feeding the material through the machines, andmeans for operating the first machine, the secondv machine, and thefeeding means as a'unitary structure.

WALTER B. HEWITT.

